Boy! If you cast away the caste system, what shall we be left with.
We have only our backwardness to show. And you want to take that away too!
If caste system is done away with, Hindus will start behaving as a monolithic block, and this will be a very bad thing for secularism in the country. For secularism to flourish, Hindus must be kept divided. Clearly, you are a communal fellow, and in need of treatment.